1. The difference between compound interest and simple interest on a sum for 2 years at 10% per annum, when the interest in compounded annually is Rs. 16. If the interest were compounded half yearly, the difference in two interests will be: (1)
- (1) Rs. 24.81
- (2) Rs. 31.61
- (3) Rs. 32.40
- (4) Rs. 26.90
- (5) None of these
2. Efficiency of Asha is 25% more than Usha and Usha takes 25 days to complete a piece of work. Asha started the work alone and then Usha joined her 5 days before completion of the work. For how many days Asha worked alone? (2)
- (1) 13 days
- (2) 11 days
- (3) 10 days
- (4) 15 days
- (5) None of these
3. In a voyage of 600 km, a ship was slowed down due to bad weather and storm in Ocean. Its average speed for the trip was reduced by 200 km/hr, and the time of trip increased by 30 minutes. The duration of the voyage is: (1)
- (1) 1 hour
- (2) 2 hour
- (3) 4/3hour
- (4) 3/2hour
- (5) 5/3hour
4. 9 kg of rice costs as much as 4 kg of sugar, 14 kg of sugar costs as much as 1.5 kg of tea, 2 kg of tea costs as much as 5 kg of coffee. Find the cost of 2.5 kg of rice, if 11 kg of coffee costs Rs. 462. (4)
- (1) Rs. 13.50
- (2) Rs. 14
- (3) Rs. 15
- (4) Rs. 12.50
- (5) none of these
5. A box contains 30 eggs out of which 6 are rotten. Two eggs are chosen at random. What is the probability that at least one of the chosen eggs is rotten? (1)
- (1) 53/145
- (2) 63/145
- (3) 51/145
- (4) 57/145
- (5) 48/145